Kopech has always been a hot head. Saw it in the minors. I'm actually shocked it took this long for him to get that fired up with the ump. He'll learn though showing the ump up. Some umps out there would've tossed him with him doing that.
You gotta love how they are already talking about the Yankees "injuries" yet haven't mentioned the Sox have actually had a few of their good hitters injured most of the year (not to mention still missing Grandal and now Rodon is out).